초록

Methods and compositions are provided that relate to cementing operations. Methods and compositions that include a latex strength enhancer for enhancing the compressive strength of slag compositions.

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1. A slag composition comprising: a hydraulic cement consisting essentially of slag, wherein the slag composition is essentially free of any other hydraulic cement;a hydroxyl source, wherein the hydroxyl source is present in an amount in the range of about 1% to about 10% by weight of the hydraulic

1. A slag composition comprising: a hydraulic cement consisting essentially of slag, wherein the slag composition is essentially free of any other hydraulic cement;a hydroxyl source, wherein the hydroxyl source is present in an amount in the range of about 1% to about 10% by weight of the hydraulic cement;a latex strength enhancer, wherein the latex strength enhancer is present in an amount in the range of about 5% to about 20% by weight of the hydraulic cement; andwater, wherein the water is present in an amount in the range of about 4% to about 150% by weight of the hydraulic cement; andwherein the latex strength enhancer increases the compressive strength of the slag composition by about 25% to 100%, and wherein the slag composition has a density of 14 pounds per gallon to about 20 pounds per gallon. 2. The composition of claim 1, wherein the hydroxyl source comprises a basic material selected from the group consisting of sodium hydroxide, sodium bicarbonate, sodium carbonate, lime, and any combination thereof. 3. The composition of claim 1, wherein the latex strength enhancer comprises a rubber material selected from group consisting of ethylene-propylene rubber, styrene-butadiene rubber, nitrile rubber, nitrile butadiene rubber, butyl rubber, neoprene rubber, polybutadiene rubber, acrylonitrile-styrene-butadiene rubber, polyisoprene rubber, AMPS-styrene-butadiene rubber, and any combination thereof. 4. The composition of claim 1, wherein the latex strength enhancer comprises styrene-butadiene rubber. 5. The composition of claim 1, wherein the latex strength enhancer comprises AMPS-styrene-butadiene rubber. 6. The composition of claim 1, wherein the slag composition further comprises an additive selected from the group consisting of a dispersant, a defoaming agent, a strength-retrogression additive, a set accelerator, a set retarder, a weighting agent, a lightweight additive, a gas-generating additive, a mechanical property enhancing additive, a lost-circulation material, a filtration-control additive, a fluid loss control additive, a foaming additive, a thixotropic additive, and any combination thereof. 7. The composition of claim 1, wherein the slag composition further comprises an additive selected from the group consisting of crystalline silica, amorphous silica, fumed silica, a salt, a fiber, a hydratable clay, calcined shale, vitrified shale, a microsphere, diatomaceous earth, metakaolin, ground perlite, rice husk ash, zeolite, a resin, and any combination thereof. 8. The composition of claim 1, wherein the slag composition further comprises a defoaming agent and a dispersant, wherein the hydroxyl source comprises lime, wherein the latex strength enhancer comprises AMPS-styrene-butadiene rubber, and wherein the slag composition has a density of about 14 pounds per gallon to about 17 pounds per gallon. 9. The composition of claim 1, wherein the latex strength enhancer increases the 24-hour compressive strength of the slag composition at 140° F. in an amount of at least about 25%. 10. A slag composition consisting essentially of: slag;a hydroxyl source, wherein the hydroxyl source is present in an amount in the range of about 1% to about 10% by weight of the slag;a latex strength enhancer, wherein the latex strength enhancer is present in an amount in the range of about 5% to about 20% by weight of the slag;a defoaming agent, wherein the defoaming agent is present in an amount in the range of about 0.1% to about 2% by weight of the slag;a dispersant, wherein the dispersant is present in an amount in the range of about 0.1% to about 5% by weight of the slag;an additive, wherein the additive is selected from the group consisting of a strength-retrogression additive, a set accelerator, a set retarder, a weighting agent, a lightweight additive, a mechanical property enhancing additive, a lost-circulation material, a filtration-control additive, a fluid loss control additive, a thixotropic additive, and any combination thereof; andwater, wherein the water is present in an amount in the range of about 4% to about 150% by weight of the slag, and wherein the slag composition has a density of 14 pounds per gallon to about 20 pounds per gallon. 11. The composition of claim 10, wherein the slag composition has a density of about 12 pounds per gallon to about 20 pounds per gallon. 12. The composition of claim 10, wherein the latex strength enhancer comprises a rubber material selected from group consisting of ethylene-propylene rubber, styrene-butadiene rubber, nitrile rubber, nitrile butadiene rubber, butyl rubber, neoprene rubber, polybutadiene rubber, acrylonitrile-styrene-butadiene rubber, polyisoprene rubber, AMPS-styrene-butadiene rubber, and any combination thereof. 13. The composition of claim 10, wherein the latex strength enhancer comprises styrene-butadiene rubber. 14. The composition of claim 10, wherein the latex strength enhancer comprises AMPS-styrene-butadiene rubber. 15. The composition of claim 10, wherein the latex strength enhancer increases the 24-hour compressive strength of the slag composition at 140° F. in an amount of at least about 25%. 16. A slag composition consisting essentially of: slag;a hydroxyl source, wherein the hydroxyl source is present in an amount in the range of about 1% to about 10% by weight of the slag;a latex strength enhancer, wherein the latex strength enhancer is present in an amount in the range of about 5% to about 20% by weight of the slag;a defoaming agent, wherein the defoaming agent is present in an amount in the range of about 0.1% to about 2% by weight of the slag;a dispersant, wherein the dispersant is present in an amount in the range of about 0.1% to about 5% by weight of the slag;an additive, wherein the additive is selected from the group consisting of a salt, a fiber, calcined shale, vitrified shale, a microsphere, diatomaceous earth, metakaolin, ground perlite, rice husk ash, zeolite, a resin, and any combination thereof; andwater, wherein the water is present in an amount in the range of about 4% to about 150% by weight of the slag, and wherein the slag composition has a density of 14 pounds per gallon to about 20 pounds per gallon. 17. The composition of claim 16, wherein the hydroxyl source comprises a basic material selected from the group consisting of sodium hydroxide, sodium bicarbonate, sodium carbonate, lime, and any combination thereof. 18. The composition of claim 16, wherein the latex strength enhancer comprises a rubber material selected from group consisting of ethylene-propylene rubber, styrene-butadiene rubber, nitrile rubber, nitrile butadiene rubber, butyl rubber, neoprene rubber, polybutadiene rubber, acrylonitrile-styrene-butadiene rubber, polyisoprene rubber, AMPS-styrene-butadiene rubber, and any combination thereof. 19. The composition of claim 16, wherein the latex strength enhancer comprises styrene-butadiene rubber. 20. The composition of claim 16, wherein the latex strength enhancer comprises AMPS-styrene-butadiene rubber. 21. The composition of claim 16, wherein the latex strength enhancer increases the 24-hour compressive strength of the slag composition at 140° F. in an amount of at least about 25%.